<template>
  <view>
    <view class="cart-container" v-if="cart.length !== 0">
      <my-address></my-address>
      <view class="cart-title">
        <uni-icons type="shop" size="18"></uni-icons>
        <text class="cart-title-text">购物车</text>
      </view>
      <!-- 有滑动删除的效果需要用 uni-swipe-action为外容器，循环每一项用 uni-swipe-action-item 包裹 -->
      <uni-swipe-action>
        <block v-for="(item, i) in cart" :key="i">
          <uni-swipe-action-item :options="options" @click="swipeItemClickHandler(item)">
            <my-goods :goods="item" :show-radio="true" :show-num="true" @radio-change="radioStateChange" @count-change="countNumChange"></my-goods>
          </uni-swipe-action-item>
        </block>
      </uni-swipe-action>
      <my-settle></my-settle>
    </view>
    <view class="empty-cart" v-else>
      <image src="/static/cart_empty@2x.png" class="empty-img"></image>
      <text>空空如也</text>
    </view>
  </view>
</template>

<script>
  import badgeMix from '@/mixins/tabbar-badge.js'
  import {
    mapState,
    mapMutations,
    mapGetters
  } from 'vuex'
  export default {
    mixins: [badgeMix],
    computed: {
      ...mapState('m_cart', ['cart'])
    },
    data() {
      return {
        options: [{
          text: '删除', // 显示的文本内容
          style: {
            backgroundColor: '#C00000' // 按钮的背景颜色
          }
        }]
      };
    },
    methods: {
      ...mapMutations('m_cart', ['changeRadioState', 'changeCountNum', 'deleteCartGoods']),
      radioStateChange(e) {
        // console.log(e)
        this.changeRadioState(e)
      },
      countNumChange(e) {
        this.changeCountNum(e)
      },
      swipeItemClickHandler(item) {
        this.deleteCartGoods(item.goods_id)
      }
    }
  }
</script>

<style lang="scss">
  .cart-container {
    padding-bottom: 100rpx;
  }

  .cart-title {
    height: 80rpx;
    display: flex;
    align-items: center;
    font-size: 28rpx;
    padding-left: 5px;
    border-bottom: 1px solid #efefef;

    .cart-title-text {
      margin-left: 20rpx;
    }
  }

  .empty-cart {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 300rpx;

    .empty-img {
      width: 180rpx;
      height: 180rpx;
    }

    text {
      font-size: 24rpx;
      color: gray;
      margin-top: 30rpx;
    }
  }
</style>
